Goofs:
Revealing mistakes: Talbot's face twitches after he has supposedly been shot dead. (more)

Trivia:
Originally titled ‘The Devil's Brood’, this was given a $354,000 budget and a relatively generous (by Universal standards) 30-day shooting schedule. Star Boris Karloff earned $20,000 and Lon Chaney Jr. received a flat $10,000 for his third appearance as the Wolf Man. John Carradine and J. Carrol Naish were both paid $7,000 each. Lionel Atwill earned $1750 and George Zucco was paid $1500. Glenn Strange was paid $500 for his role as Frankenstein's monster. (more)

Filming Locations:
Universal Studios - 100 Universal City Plaza, Universal City, California, USA

Quotes:
Dr. Gustav Niemann: Fifteen thousand Marks. A thousand for every year I spent in a stinking, slimy dungeon. You bargain poorly, Herr Ulman.
Ullman: Don't kill me!
Dr. Gustav Niemann: Kill my trusted old assistant? Why, no. I'm going to repay you for betraying me; I'm going to give that brain of yours a new home in the skull of the Frankenstein monster. As for you Strauss, I'm going to give you the brain of the wolfman so that all your waking hours will be spent in untold agony awaiting the full of the moon... which will change you into a werewolf.
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